发明名称 Indicating instrument
摘要 An indicating instrument is provided in which a pointer is secured to pointer drive means by attraction force of magnets and the magnetic influence of the magnets can be reduced to improve the indication accuracy of the pointer. The indicating instrument has a display plate 21, a pointer 22 provided on the front-face side of the display plate 21, and pointer drive means provided on the back-face side of the display plate 21 for rotating the pointer 22. The indicating instrument includes a first magnet 22c of ring shape provided in the pointer 22, a second magnet 23a provided in the pointer drive means such that the second magnet 23a is opposite to the first magnet 22c, a rotation drive member 24 included in the pointer drive means and rotating the second magnet 23a, and a magnetic shield member 29 provided between the second magnet 23a and the rotation drive member 24, wherein the pointer 22 is rotated in association with rotation drive of the pointer drive means by attraction force of the first and second magnets 22c, 23a.
申请公布号 US8365681(B2) 申请公布日期 2013.02.05
申请号 US20080811325 申请日期 2008.12.16
申请人 NIPPON SEIKI CO., LTD.;MASUDA HIDEKI 发明人 MASUDA HIDEKI
分类号 G01D7/00 主分类号 G01D7/00
代理机构 代理人
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